| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Lianchem | China national standards | MT | 1191.31 | USD | 20250813 |
| Qingdao Shengze Chem | China national standards | MT | 1401.54 | USD | 20250813 |
| Qingdao Shengze Chem | China national standards | MT | 1401.54 | USD | 20250813 |
| Shandong Xingpeng Chem | China national standards | MT | 1401.54 | USD | 20250813 |
| Shandong Xima | China national standards | MT | 840.93 | USD | 20250813 |
| Shandong Junfeng | China national standards | MT | 918.01 | USD | 20250813 |
| Shandong Junfeng | China national standards | MT | 911.0 | USD | 20250813 |
| Shandong Qiangsen Chem | China national standards | MT | 1051.16 | USD | 20250813 |
| Shandong Langchem | China national standards | MT | 1163.28 | USD | 20250813 |
| Shandong Langchem | China national standards | MT | 1177.3 | USD | 20250813 |